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7 |
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8 | import * as Promise from "bluebird";
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9 | import ReadableStream = NodeJS.ReadableStream;
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10 |
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11 | export const streamPromise = (stream: ReadableStream) =>
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12 | new Promise((resolve, reject) => {
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13 | const buffer: Buffer[] = [];
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14 | stream.on("data", data => {
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15 | buffer.push(data);
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16 | });
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17 | stream.on("end", () => {
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18 | resolve(Buffer.concat(buffer));
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19 | });
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20 | stream.on("error", err => {
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21 | reject(err);
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22 | });
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23 | });
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31 |
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32 | export function getResourceBufferPromise(
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33 | resource: ReadableStream | Buffer | string
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34 | ): Promise<Buffer> {
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35 |
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36 | if (typeof resource === "string") {
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37 | return Promise.resolve(new Buffer(resource));
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38 | }
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39 |
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40 |
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41 | if (resource instanceof Buffer) {
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42 | return Promise.resolve(resource);
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43 | }
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44 |
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45 |
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46 |
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47 | return this.streamPromise(resource);
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48 | }
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